Sheffer_Stroke

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <cmath>

using namespace std;

double Log2( double n );

int main ()
{
    ifstream ifs("sheffer.in");
    string strNumbers = "";
    ifs >> strNumbers;
    ifs.close();
    vector<int> Numbers(strNumbers.length());
    for (unsigned int i = 0; i < strNumbers.length(); i++)
    {
        Numbers[i] = strNumbers[i] - '0';
        cout << Numbers[i] << " ";
    }
    cout << endl;
    cout << "n = " << Log2( Numbers.size() ) << endl;
    ofstream ofs("sheffer.out");
    for (unsigned int i = 0; i < Log2( Numbers.size() ); i++)
        ofs << char(i + 97);
    ofs << '|';
    ofs.close();
    system("PAUSE");
    return (0);
}

double Log2( double n )
{
    return log( n ) / log( 2. );
}